Controlling device for elevators



(No Model.)

N. GmBASSETT. CONTROLLING DEVICE FOR ELEVATORS.

Patented July 21, 1891. #1;

7/51/1/5/9/5/11/5/rail/I451;I 7/17/5111, H

llllll UNITED STATES PATENT OFFICE.

NORMAN C. BASSET", OF LYNN, MASSAOHUSE'FS, ASSIGNOR TO THE NATIONALCOMPANY, OF CHICAGO, ILLINOIS.

CONTROLLING DEVICE FOR ELEVATORS.

SPECIFICATION forming part of Letters Patent No. 456,463, dated July 21,1891.

Original application filed October 22, 1886, Serial No. 216,962. Dividedand this application filed May 8, 1891. Serial No. 392,023. (No model.)Patented in France September 25, 1888, N0- 193,l82; in Belgium September26, 1888, No. 83,380; in Canada February 16, 1889, No. 30,805 inAustria-Hungary July To 00% whom it may concern.-

Be it known that I, NORMAN O. BASSETT, a citizen of the United States,residing at Lynn, Essex county, State of Massachusetts, have inventedcertain new and useful Improvements in Means for Operating theControlling Devices of Elevators, of which the following is aspecification. I

My invention was patented in England August 3, 1889, No. 13,890; inFrance September 25, 1888, No. 193,182; in Belgium September 26, 1888,No. 83,380; in Austria-Hungary July i, 1889, No. 29,933, and in CanadaFebruary 16, 1889, No. 80,805; and it relates to means for operating thevalve, the shifting-bar, or other stopping or starting or controllingdevice of an elevator-engine, and more especially to that class ofappliances in which said controlling devices are actuated through themedium of parallel cable-sections adjacent to the path of theelevator-cage, as shown in my application, Serial No. 216,962, filedOctober 22, 1886, of which this is a division.

My invention consists of the combination of such cable-sections andguide-pulleys and movable pulleys carried by the cage and arranged inrespect to the cable-sections so as to draw upon one cable-section andrelax the other simultaneously by the action of a single device withinthe cage, as fully set forth hereinafter and as illustrated in theaccompanying drawings, in which- Figure 1 is a side view showing thecage and appliances for moving the controlling device of the engine ofan elevator; Fig. 2, a View illustrating the course of the cables; Fig.3, a part section on the line 1 2, Fig. 1.

The cage A is connected and operated to move vertically within the wellin the usual manner, and to eyebolts 2 2 or other fixed connections aresecured the ends of two cable-sections 5 6, which may be the parts of acontinuous cable, or, as shown, may be separate sections, and thesecable-sections are connected in any suitable manner with the stop ping,starting, and reversing mechanism of the engine. As shown, the sectionsare connected with such mechanism through the medium of a lever 15,pivoted to a bracket 16 and carrying a curved rack 17, gearing with 4,1889, No. 29,933, and in England August 3,1889, No. 13,890.

a straight rack 18 upon the spindle of the controlling-valve in a case19. Any other suitable stopping, starting, and reversing mechanism can,however, be employed-as a switch belt-shifter or steam or water valve ofany suitable form, according to the character of the motor-engine.

In order to operate both cables from a single device within the cageas,for instance, a hand-lever 11to thereby draw upon one cable and relaxthe other by a single movement of said hand device, and thus shift thecon trolling device positively in either direction and to any requiredextent, I make use of guide-pulleys for guiding each cable-section andof movable pulleys shifted by the device 11, and which act to bend thecable-sections or draw them to a greater or less extent from theguide-pulleys.

As shown, guide-pulleys 28 29, arranged at difierent heights upon studscarried by the cage, serve to deflect the section 5, which is carriedaround a pulley 26, carried by an arm 9, connected with a rock-shaft 20,turning in bearings upon the cage, and to which is connected the lever01' the hand device. The section 6 passes around guide-pulleys 3O 81,turning upon studs carried by the cage and around a pulley 27, carriedby the arm 9. Upon shifting the position of the hand device 11 thepulleys 26 27 are carried to one side or the other, thereby bending inone section of the cable to a greater extent than before and relaxingand decreasing the extent of the bend or loop of the other section. Thusone cable-section is drawn upon and the other is relaxed simultaneously,thereby shifting the position of the controlling mechanism to impart thedesired movements to the elevator-engine.

While I have referred to the device within the cage as a hand device,Ihave so designated it because this term is usually employed in thisconnection, but without intending to thereby limit myself to a devicewhich must be moved by hand, as the device within the cage may beconstructed to be operated by the foot, as is common in many elevators.

WVithout limiting myself to the precise arrangement of movable and guidepulleys shown or to the construction shown of the hand-operating andcable-operating devices, I claim- 1. lhe combination of the twocable-sections hanging in a well and connected to fixed supports andwith the stopping and starting mechanism of an elevating -engine, a cageprovided with a single hand device, guidepulleys carried by the cage,and shifting-pulleys connected to be shiftedby the hand device, thecable-sections passing round the guidepulleys and shifting-pulleys, andall arranged to draw upon one cable-section and relax the other by asingle movement of the hand device, substantially as set forth.

2. The combination of a cable having two sections suspended Within awell from fixed points and connected to operate the stopping andstarting mechanism, a hand device, and two pairs of guide-pulleyscarried by the cage, and a lever or arm carrying two pulleys andconnected with the hand device Within the cage, each cable-sectionpassing over one pair of guide-pulleys and around one of the pulleyscarried by said lever, substantially as described.

8. The combination, with the cage and stopping and starting device, oftwo standing cable-sections suspended in the well, an operating deviceupon the cage bearingon both

